@article{AFST_2009_6_18_3_541_0,
     author = {Paul Broussous},
     title = {Representations of ${\rm PGL}(2)$ of a local field and harmonic cochains on graph},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {541--559},
     publisher = {Universit\'e Paul Sabatier, Institut de Math\'ematiques},
     address = {Toulouse},
     volume = {Ser. 6, 18},
     number = {3},
     year = {2009},
     doi = {10.5802/afst.1213},
     mrnumber = {2582439},
     zbl = {1192.22007},
     language = {en},
     url = {https://afst.centre-mersenne.org/articles/10.5802/afst.1213/}
}